Ques 21. The gas which turns into liquid at the lowest temperature among the following is

1. Hydrogen
2. Oxygen
3. Helium
4. Nitrogen

Answer - Hydrogen

Ques 22. An egg sinks in soft water but floats in a concentrated solution of salt because

1. Egg absorbs salt from the solution and expands
2. Albumin dissolves in salt solution and egg becomes lighter
3. The density of salt solution exceeds the density of eggs
4. Water has high surface tension

Answer - The density of salt solution exceeds the density of eggs

Ques 23. What should a person on a freely rotating turn table do to decrease his (angular) speed ?

1. Bring his hands together
2. Raise his hands up
3. Spread his hands outwards
4. Sit down with raised hands

Answer - Spread his hands outwards

Ques 24. What is the name of the writer of Indian origin whose novel, The Inheritance of Loss has bagged Man Booker Prize ?

1. Vikram Seth
2. Kiran Desai
3. Salman Rushdie
4. V. S. Naipaul

Answer - Kiran Desai

Ques 25. Which country from the following is a permanent member of the UN Security Council ?

1. Switzerland
2. People’s Republic of China
3. Japan
4. Ukraine

Answer - People’s Republic of China

Ques 26. The Loktak Lake on which a hydroelectric project was constructed is situated in the State of

1. Madhya Pradesh
2. Manipur
3. Meghalaya
4. Himachal Pradesh

Answer - Manipur

Ques 27. The birthrate measures the number of births during a year per

1. 100 population
2. 1000 population
3. 10000 population
4. 100000 population

Answer - 1000 population

Ques 28. Which of the following is not included in the National Income ?

1. Imputed rent of owner occupied houses
2. Government expenditure on making new bridges
3. Winning a lottery
4. Commission paid to an agent for sale of house

Answer - Winning a lottery

Ques 29. Personal disposable income is

1. Always equal to personal income
2. Always more than personal income
3. Equal to personal income minus indirect taxes
4. Equal to personal income minus direct taxes

Answer - Equal to personal income minus direct taxes

Ques 30. Who prepared the first estimate of National Income for the country ?